package A;

public class Test_03 {
    public static void main(String[] args) {
        int r = 1;
        double c = 3.14159265;
        while (true) {
            double s = r * r * c;
            if (s < 50) {
                System.out.println("圆的半径为：" + r + "      圆的面积为：" + s);
            } else {
                break;
            }
            r++;
        }
    }
}
